Laser sensor and manufacturing method

Abstract

The present invention relates to the field of sensors, and discloses a laser sensor and a manufacturing method. The laser sensor includes a working component and a shell. The working component extends an indicator light to the outside of the shell. The working component includes a working part and a bracket. The working part is installed on the bracket. The manufacturing method is to directly perform inspection after the bracket and the working part are assembled. The qualified products are packaged in a shell, and the unqualified products are repaired or replaced for the corresponding faults. By adding a bracket structure, the working part is installed on the bracket structure, and then the working component formed by the working part and the bracket structure is integrally loaded into the shell. When a fault is detected or a fault occurs during use, the working part can be directly removed from the bracket, so as to repair and replace the faulty position, avoiding unnecessary waste caused by replacing the whole, and also avoiding the greater damage to the shell caused by traditional disassembly.

Description

Technical Field

[0001] The present invention relates to the field of sensors, and in particular to a laser sensor and a manufacturing method thereof. Background Art

[0002] Existing laser sensors usually form laser sensors by directly installing the various workpieces involved in the laser sensor on the shell by means of plug-ins. The laser sensor finally formed in this way is approximately an integrated structure. However, when the laser sensor formed in this way encounters partial workpiece failure during production detection or use, the shell will generally be damaged to a large extent due to the complexity of disassembly and assembly of the workpiece. Therefore, for convenience, the entire workpiece is generally replaced directly, which causes unnecessary waste. Therefore, a laser sensor and a manufacturing method are needed to solve the problem that in the prior art, each workpiece is separately inserted into the shell to form an integrated structure, which leads to inconvenience in disassembly and assembly when some workpieces are damaged, and the entire laser sensor can only be directly replaced when some workpieces are damaged. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a laser sensor and a manufacturing method, which solves the problem in the prior art that each workpiece is separately inserted into a shell to form an integrated structure, resulting in inconvenience in disassembly and assembly when some workpieces are damaged and the entire laser sensor can only be directly replaced when some workpieces are damaged.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A laser sensor comprises a working component, a shell, a laser emitting device and a laser receiving device. The working component comprises a working part and a bracket. The working part is detachably mounted on the bracket. The bracket is detachably mounted on the shell. The laser emitting device and the laser receiving device are mounted on the working component.

[0006] As a further improvement of the above technical solution, the bracket extends a plurality of clamping columns in the direction toward the working part, and the working part is correspondingly provided with a plurality of clamping grooves, and the clamping columns extend into the clamping grooves to realize the positioning of the working part on the bracket.

[0007] As a further improvement of the above technical solution, a first positioning component and a second positioning component are provided on the shell, the first positioning component realizes the positioning of the working part on the shell, and the second positioning component realizes the positioning of the bracket on the shell.

[0008] As a further improvement of the above technical solution, the first positioning assembly includes a positioning groove and a baffle, one side of the positioning groove extends along the shell to play a guiding role, the positioning groove limits the displacement of the working part along the length direction of the shell, the baffle presses the working part against the bracket, and the baffle cooperates with the bracket to limit the displacement of the working part along the width direction of the shell.

[0009] As a further improvement of the above technical solution, the second positioning member includes a first positioning column and a second positioning column, the first positioning column is stuck in a groove on the outside of the bracket, and the second positioning column presses the bracket against the shell, and the first positioning column, the second positioning column and the shell jointly limit the movement of the bracket along the surface of the shell.

[0010] As a further improvement of the above technical solution, the laser receiving device is a patch lamp, and the bracket is provided with a laser hole and a receiving hole. The laser emitted by the laser emitting device passes through the laser hole and is emitted outward, and the external light enters the interior of the shell from the receiving hole and is received by the laser receiving device.

[0011] As a further improvement of the above technical solution, the working component is wrapped with copper foil, and the working part is equipped with a pair of LED light sources that can emit different lights. The LED light sources are connected by a U-shaped light guide column extending to the outside of the shell, and only one LED light source emits light at the same time.

[0012] As a further improvement of the above technical solution, the receiving hole is a stepped hole, and a lens is installed on the receiving hole to converge the light onto the laser receiving device.

[0013] As a further improvement of the above technical solution, the shell is provided with an opening, and the opening is equipped with a filter capable of filtering light within a set wavelength range.

[0014] A laser sensor manufacturing method is also provided, and the manufacturing steps are as follows:

[0015] S1 clamps the working part onto the bracket to form a working assembly with laser sensing function;

[0016] S2 tests the working components;

[0017] S3 packs the working components that have passed the test into a box body to form a product.

[0018] The beneficial effects of the present invention are as follows: by adding a bracket structure, the working part is installed on the bracket structure, and then the working assembly formed by the working part and the bracket structure is installed as a whole in the shell. When a fault is detected or a fault occurs during use, the working part can be directly removed from the bracket to repair and replace the faulty position, avoiding unnecessary waste caused by replacing the entire unit, and also avoiding significant damage to the shell caused by traditional disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 is an overall schematic diagram of a laser sensor in one embodiment of the present invention;

[0021] Figure 2 is an exploded view of the main body of a laser sensor in one embodiment of the present invention;

[0022] Figure 3 is a schematic cross-sectional view of a laser sensor along an XOZ plane in one embodiment of the present invention;

[0023] Figure 4 Schematic diagram of a cross-section of a laser sensor along the XOZ plane in one embodiment of the present invention. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that each technical feature and the overall technical solution of the present invention can be understood intuitively and figuratively, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0025] In the description of the present invention, if it involves a description of orientation, such as "upper", "lower", "front", "back", "left", "right", etc., the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. When a feature is referred to as "set", "fixed", or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0026] In the description of the present invention, if "several" is involved, it means one or more, if "multiple" is involved, it means more than two, if "greater than", "less than" or "exceed" is involved, it should be understood as not including the number itself, if "above", "below" or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In addition, unless otherwise defined, the technical terms and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art. The terms used in the present invention are only for describing specific embodiments, not for limiting the present invention.

[0028] Reference Figure 1 , shows an overall schematic diagram of a laser sensor in an embodiment of the present invention, the laser sensor comprises a main body 1 and a cable 2, the cable 2 extends into the main body 1. The main body 1 is approximately a rectangular parallelepiped structure, and the coordinate axes in this figure are used for directional description in the following text.

[0029] Reference Figure 2 , shows an exploded view of the main body of a laser sensor in an embodiment of the present invention. The main body is composed of a working component and a shell. The working component is installed inside the shell. The working component includes a working part 11 and a bracket 12. The working part 11 includes a T-shaped main control board 111, and a laser light 112 and a receiving light 113 installed on the main control board 111. The receiving light 113 is a patch light. When the receiving light 113 receives the reflected light from the laser emitted by the laser light 112, or when the reflected light from the laser emitted by the laser light 112 received by the receiving light 113 is blocked, that is, when the state of the light received by the receiving light 113 changes, the receiving light 113 sends a signal. The generation of this signal means that the working part 11 has responded to the change of external information, that is, the basic function of the sensor is realized. The working part 11 also includes a signal light 114 located at the end. The signal light 114 includes a pair of LED light sources of different colors and a U-shaped light guide column 115 connecting the two LED light sources. At the same time, only one LED light source emits light. After receiving the signal from the receiving lamp 113, the light source of the signal lamp 114 also changes, and the color of the light in the corresponding light guide column 115 also changes. The light guide column 115 extends from the signal lamp hole 134 of the housing 131, and the light guide column 115 serves as an exposed indicator light.

[0030] The working part 11 is installed on the bracket 12, and a receiving hole 121 and a laser hole 122 are provided on the bracket 12. The receiving hole 121 is a stepped hole, and a lens 123 is installed on the receiving hole 121. The lens 123 is used to converge the light on the receiving lamp 113 to improve the sensitivity of the receiving lamp 113. The laser hole 122 and the receiving hole 121 are transmission channels for the corresponding light of the laser lamp 112 and the receiving lamp 113 respectively.

[0031] The working part 11 is mounted on the bracket 12 to form a working assembly, which is installed in the shell 131 and encapsulated by the shell cover 132. The shell 131 is provided with an opening, and a filter is installed at the opening to filter light to prevent external light of multiple wavelengths from entering the shell and causing interference.

[0032] Furthermore, except for the light-emitting area where the laser light 112 and the receiving light 113 are located and the light-emitting area where the signal light 114 is located, the rest of the working component is wrapped with a layer of copper foil paper, and the copper foil paper is used to achieve electromagnetic shielding.

[0033] Reference Figure 3 , showing a schematic cross-sectional view of a laser sensor along the XOZ plane in one embodiment of the present invention. This figure is intended to illustrate the positioning method of the working component installed inside the shell 131. The shell 131 simultaneously positions the working part 11 and the bracket 12 on the working component. The shell 131 is provided with a positioning groove 1311 and a baffle 1312. The positioning groove limits the movement of the working part 11 along the Z direction. The baffle 1312 abuts the working part 11 to limit the movement of the working part 11 toward the negative direction of the X-axis. In the positive direction of the X-axis, the working part 11 abuts the bracket 12, that is, the working part 11 is positioned in the X-axis direction by the bracket 12 and the baffle 1312. Combined with Figure 2 It can be known that one side of the positioning groove 1311 extends along the shell, and plays a guiding role when the working part 11 is installed into the shell.

[0034] In addition, a first positioning column 1321 and a second positioning column 1322 extend from the shell 131. The first positioning column 1321 is stuck in a groove outside the bracket 12. The first positioning column 1321 and the second positioning column 1322 jointly limit the displacement of the bracket 12 along the X-axis direction, and cooperate with the shell 131 to limit the displacement of the bracket 12 along the X-axis and Z-axis.

[0035] Reference Figure 4, shows a schematic cross-sectional view of a laser sensor along the XOZ plane in one embodiment of the present invention. This figure is intended to illustrate the positioning method of the working part 11 installed on the bracket 12. The bracket 12 extends a first clamping column 1241, a second clamping column 1242 and a third clamping column 1243 toward the working part 11, and a plurality of clamping grooves are correspondingly provided on the working part 11. The first clamping column 1241, the second clamping column 1242 and the third clamping column 1243 work together to limit the displacement of the working part 11 relative to the bracket 12 on the YOZ plane. Figure 3 It can be seen that after the assembly of the matching cover is completed, the working component inside the laser sensor remains relatively still with the laser sensor itself.

[0036] In another embodiment of the present invention, the working part is adhesively fixed after being installed on the bracket, or the first clamping column, the second clamping column and the third clamping column extending from the bracket are set as elastic fastener structures, and the elastic fastener rebounds and locks the working part after the working part is fully inserted into the bracket.

[0037] In another embodiment of the present invention, the working assembly is snapped into the box body and reinforced by bonding.

[0038] In another embodiment of the present invention, the receiving lamp is a plug-in lamp, and the corresponding receiving hole on the bracket remains a through hole, and there is no need to install a lens.

[0039] In combination with the above, for the laser sensor provided by the present invention, its manufacturing method is as follows:

[0040] S1 clamps the working part onto the bracket to form a working assembly with laser sensing function;

[0041] S2 tests the working components;

[0042] S3 packs the working components that have passed the test into a box body to form a product.

[0043] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the embodiments, and technicians in the relevant field can make various equivalent modifications or substitutions without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A laser sensor, characterized in that: The laser emitting device comprises a working component, a shell, a laser emitting device and a laser receiving device. The working component comprises a working part and a bracket. The working part is detachably mounted on the bracket. The bracket is detachably mounted on the shell. The laser emitting device and the laser receiving device are mounted on the working component. The bracket is provided with a laser hole and a receiving hole. The working part comprises a main control board, and a laser lamp and a receiving lamp mounted on the main control board. The receiving lamp is a patch lamp. When the receiving lamp receives reflected light from the laser emitted by the laser lamp, or when the reflected light from the laser emitted by the laser lamp is blocked, the receiving lamp sends a signal. The housing is provided with a first positioning assembly and a second positioning assembly, wherein the first positioning assembly realizes the positioning of the working part on the housing, and the second positioning assembly realizes the positioning of the bracket on the housing; The first positioning assembly includes a positioning groove and a baffle, one side of the positioning groove extends along the shell to play a guiding role, the positioning groove limits the displacement of the working part along the length direction of the shell, the baffle presses the working part onto the bracket, and the baffle cooperates with the bracket to limit the displacement of the working part along the width direction of the shell; The second positioning assembly includes a first positioning column and a second positioning column. The first positioning column is stuck in a groove outside the bracket, and the second positioning column presses the bracket against the shell. The first positioning column, the second positioning column and the shell jointly limit the movement of the bracket along the surface of the shell.

2. The laser sensor according to claim 1, characterized in that: The bracket extends a plurality of clamping columns in a direction toward the working part, and the working part is correspondingly provided with a plurality of clamping grooves, and the clamping columns extend into the clamping grooves to realize the positioning of the working part on the bracket.

3. The laser sensor according to claim 1, characterized in that: The laser receiving device is a patch lamp. The laser emitted by the laser emitting device is emitted outward through the laser hole. The external light enters the interior of the shell from the receiving hole and is received by the laser receiving device.

4. The laser sensor according to claim 3, characterized in that: The working component is wrapped with copper foil, and a pair of LED light sources capable of emitting different light rays are mounted on the working part. The LED light sources are connected by a U-shaped light guide column extending to the outside of the shell, and only one LED light source emits light at the same time.

5. The laser sensor according to claim 3, characterized in that: The receiving hole is a stepped hole, and a lens is installed on the receiving hole to converge light onto the laser receiving device.

6. The laser sensor according to claim 3, characterized in that: The shell is provided with an opening, and the opening is equipped with a filter capable of filtering light within a set wavelength range.

7. A method for manufacturing a laser sensor, characterized in that: For manufacturing a laser sensor as claimed in any one of claims 1 to 6, the manufacturing steps are as follows: S1 clamps the working part onto the bracket to form a working assembly with laser sensing function; S2 tests the working components; S3 packs the working components that have passed the test into a box body to form a product.

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